From f17667c813c7eee257a2ad6dc5ff9aef66a2a0ed Mon Sep 17 00:00:00 2001
From: Franco Fichtner <franco@opnsense.org>
Date: Mon, 24 Aug 2015 11:28:37 +0200
Subject: [PATCH] interfaces: fix a crash report

---
 src/www/interfaces_vlan_edit.php | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/www/interfaces_vlan_edit.php b/src/www/interfaces_vlan_edit.php
index c7b030318..8a9a9f0fb 100644
--- a/src/www/interfaces_vlan_edit.php
+++ b/src/www/interfaces_vlan_edit.php
@@ -101,10 +101,12 @@ if ($_POST) {
 			break;
 		}
 	}
-	if (is_array($config['qinqs']['qinqentry'])) {
-		foreach ($config['qinqs']['qinqentry'] as $qinq)
-			if ($qinq['tag'] == $_POST['tag'] && $qinq['if'] == $_POST['if'])
+	if (isset($config['qinqs']['qinqentry'])) {
+		foreach ($config['qinqs']['qinqentry'] as $qinq) {
+			if ($qinq['tag'] == $_POST['tag'] && $qinq['if'] == $_POST['if']) {
 				$input_errors[] = gettext("A QinQ VLAN exists with this tag please remove it to use this tag with.");
+			}
+		}
 	}
 
 	if (!$input_errors) {